Chimney smoke-pipe thimble



Oct. 21, 1930- l. OJBLANKENBERG CHIMNEY SMOKE RIPE 'I'HIMBLE' Filed Aug.12, 1929 Y-M ATTORNEYJ NGWAn o. BLANKEltBERGgOFNMILWAUKEE,' WIsGONSINI IPatented Oct. 21, 1930 4 seine-m SMO E-1 m11 1m 1 Application filedAugust 12,1929; Serial no. $85,257;

This invention relatesvto improvements in chimney smoke pipe thimbles.

In connecting a furnace or boiler smoke pipe to a chimney it is commonpractice to chop an opening in the bricks of. the side wall of thechimney whichopening is of necessity irregular, and then the flangedportion of a stove pipe thimble is cemented or plastered around saidopening and the end portion of '10' the smoke pipe is received by saidthimble.- This arrangement is open to the disadvantages thatthecement orplaster for securing the thimble is exposed and will crack away from thebricks and will ultimately destroy the draft through the smoke pipe andalso loosen the smoke pipe connection.

It is the primary object of the present invention to overcome the aboveobjections by oproviding'a device or thimble for securing V the end of asmoke pipe Within a chimney opening in a 'manner so that the attachmentcannot loosenand which can be installed and connected .veryexpeditiously.

It is also an object of the invention to pro vide a chimney smoke pipeconnection or With the above and other objects view the inventionconsists of the improved chim-- ney smoke pipe thimble and its parts andcombinations as set forth in the claims, and all equivalents thereof. c

'In the accompanying drawing in which the same reference charactersindicatethe same parts-in all of the views v 1 is a fragmentary "iew ofa chimney showing the improvedsmoke pipe, thimble I mounted in anopening therein and receiving the end'portion ofa smoke pipe, partsbeing r surface- 0fthechimney-around the"?o"r Jen' i ng,]

broken away and'in section Fig. 2 is a front view of the improvedchimney smoke pipe thimble;

' Fig. 3 is a rear view thereof;

Fig. 4 is side vi'waaaig; Fig; 5 is a detail perspe ctive Figlfi' is adetail perspective'fyiew of the flange portion-Ofthe thimb1e.=-

' Referring now more particularly to thei prises a square stove pipethimble designated by: the numeral 8 and secured'to the inner, forwardportions of the" side walls of the thimble are right-angular attaching'brac'k ets 9 whose piQjBCting portions are formed with threaded openings-10-.; "Adapted to cooperate'with' the thimble member'S is a; stove pipecollar *11 which is of squ re vformation and is 'of' dimensions largerthan tho's'e ofthef i thimble and saidcollar 1 1 is "formed with acentral circular opening 12* of a size'sufli-r astandar'd smoke pipe. t,a

,When' the device 'islinstalle' d," a, square hole; of a suitable sizeis 'choppe'd inthe bricks of a wall of the chimney-'13, saidholebein'g v designated by thenumeral' 14 inFig; 1', and

in practice the opening '14 is' usually quite irregular due to thediflicultvin forming a hole'inthe brick wall. The square stovepipe I voflthe square collar'portion-of the thimble and cient to closely receivethe end portion of drawingit' will appear that the-devicecomthimbl'efi8is then inserted into the opening 14 so that 'its 'outer edge-is flushwith the" outer-surface of the chimney,asshown in. Fig, 1,": and ifther'e' areany' crevices between: the thimble and "thehrick'sfsurrounding the? opening 14, thes mezmay be' filled with ce-'ment or mortar. 'Also "cement,-mort arfior plaster' s' disposed on theouter surface of the chnnney around the openingjas indicated by thenumeral 15 in I'Tig. 1; ltls'houldal-so ,beobs'erved that the thimble isanchoredin placewithinthe opening by means-of-spaced pairsof nails-"16driven through openings 17' ber,andintothe mortar joints between bricksof the'chimny a.-,

in the chimney opening and cement, mortar therefor inthe side walls ofthe thimblemem or'plaster has beenfdisposed*-onfthe one;

the outer collar lljwhich"is i initi'ally s pa; rated from-the thimble8,is pressed against coinciding with the opening Mas closely as possible.vThe collar 11 is then connected to the thimble and drawn tightly againstthe mortar or" cement interposed between the same and the wall of thechimney by means 'of bolts 18 inserted through openings 19 I thereforinthe, collar member 11 and also through the openings in thebrackets 9carried by the square'thimble member, and

u the outer face of the inflFig. l.

the inner end portions of the bolts, of course,

carry nuts 20. Inthis Inanner "the outer collar member lli s tightlyconnected to the inserted thimble member 8 and is cl'amped"*?"* againstthe chimney w all and the cement-or 11- wall and having an openingtherein registering with said chimney wall opening, cem- V entitiousmaterial interposed between said plate and the'chimney wall around theopening therein, and *a smoke pipe "having a beaded outer end portionfrictionally mounted. within saidicollar opening withthe bead againstthejouter surface of thejcollar surrounding the opening.

In testimony whereof l afiix my signature. 1&1; i a I ir e n 0.-BLANKENBERG.

mortar interposed between the chimney wall 'i I and the collar sealsanycrevices or cracks which might occur. The outer end-portion of achimneyjsmoke pipe 21 is lastly inserted into p g f'the collar member 11sufliciently $0 that-the external annular -2 0f ;s k pipe will abutagainst a The improved chimney smoke thim ble provides an eflicient and?quick device-for" I i the securement of the inner portion. of a collar.member as shown smoke pipe within an opening out in a chim-- ney andthere is no danger of the cement or.

V V ing flush with )the outer. surface of the :wall,"

opening out through a mortar working loose or breaking away because itis clamped tightly between the inner i a surface of the collar member 11and the outer surface of the chimney-adjacent the opening therein, The"deyice furthermore,apermits clean or replace the same, and there isnodanger of the draft being .destroyedby the occurrence of a leak inthejchimney opening for the smokel'pipe end, Also, the device is bothsimple and novel and is welladaptedfor the purposes setfort-h: I u .7

What; is claimed as the; invention is I. The combination with a chimneyhav of a thimble member inserted in, said. op en-,

the quick detachment or attachment of a; V ,chimney smoke pipe when itisine'cessaryto ing an opening out through awall thereof,

a collar-of greater outsidedimensions than I i I opening; therein,andasmokepipeihaving its end portion {insertedin the; opening-Eof saidcollar." 1

2.1" ln' combination', a, chimneylihaving an thimble' member; insertedin'said opening flush ,withthe outer .surface of the wall,

means forfanchoring said thimble -member within theopening, a squarecollar member of greater outside dimensions than said t himble memberclamped t'ojsaid thimblemember ag -1 he ent r: urfec pfi "s d a hi y.

wall thereof, a square,

a no i uU

